I saw some at Wal-Mart, but they were for indoor use only. I purchased colored L.E.D flood bulbs on eBay last year, but just the slightest bit of condensation, and the L.E.D.'s separated from the glass and I had to silicone them back together. Anyone finds out where to get them let me know, I am needing some.
I have always used standard flood lights before ( both colored and clear for my lighting efects ). Now after reading so much about these LEDs and their efects on prorps. I need to go that route. I probably will do both direct prop lighting and back drop as well. Looks really cool.